Seven Years Ago, An IPCC Lead Author Exposed Critical Weaknesses of the IPCC Foretelling Tools

NCAR’s Dr. Kevin Trenberth was a lead author of the IPCC’s 2nd, 3rd and 4th Assessment Reports. Near to the publication of the IPCC’s 4th Assessment Report 7 years ago, Dr. Trenberth penned a blog post at Nature.com Predictions of climate—a blog post that exposed many critical weaknesses in the climate models used by the IPCC for divining the future of climate on Earth. The post was filled with extraordinary quotes, including:

…none of the climate states in the models correspond even remotely to the current observed climate.

In particular, the state of the oceans, sea ice, and soil moisture has no relationship to the observed state at any recent time in any of the IPCC models.

Moreover, the starting climate state in several of the models may depart significantly from the real climate owing to model errors.